public class kSet
{//用单链表实现
private kSetNode head;

public kSet()
{
head=null;
}
//将kSet清空
public void clear()
{
head=null;
}
//向kSet中添加元素
public boolean add(int x,int y)
{
kSetNode node=new kSetNode(x,y);
return add(node);
}
//向kSet中添加元素
public boolean add(kSetNode node)
{
if(!contains(node))
{
node.next=head;
head=node;
return true;
}else
{
return false;
}
}
//判断kSet是否为空
public boolean isEmpty()
{
if(head==null)
return true;
else
return false;
}
//摘下链表头元素并返回此元素
public kSetNode getFirst()
{
kSetNode p=head;
head=p.next;
return p;
}
//遍历kSet，如果有相同元素返回true，否则返回false
public boolean contains(kSetNode node)
{
kSetNode p = head;
while (p != null) {
if(p.equals(node))return true;
p=p.next;
}
return false;
}
}
//kSet中的元素
public class kSetNode
{
public int x,y;
public kSetNode next;

public kSetNode(int x,int y)
{
this.x=x;
this.y=y;
next=null;
}

public boolean equals(kSetNode node)
{
if(node.x==x&&node.y==y)
return true;
else
return false;
}

public int getX()
{
return x;
}

public int getY()
{
return y;
}
}

public BlocksCanvas()
{
//取得当前手机屏幕的高度和宽度
height = getHeight();
width = getWidth();

//坐标矫正量
addX = (width-120)/2;
addY = (height-142)/2;

//初始化屏幕参数
SCREEN_X = addX + 48;//屏幕顶点
SCREEN_Y = addY + 10;
WAITBLOCK_X = addX + 19;//等待方块顶点
WAITBLOCK_Y = addY + 103;
SCORES_X = addX + 36;//分数顶点
SCORES_Y = addY + 34;
STAR_X=addX+4;//五角星的顶点
STAR_Y=addY+70;
}
}